I used to feel similarly, but now, I'm not so sure. What worries me is that lab-grown meat will allow big ag practices to continue, which will do more harm to our co2 emissions and world's soil health.
To expand on this further, there is active research and practices into sustainable farming practices that show diverse crop rotations along dense but short grazing across the land has the ability to rebuild top soil 10x than previously thought. Most importantly this top soil serves as a MASSIVE CARBON SINK.
Using this proven methods, we can leverage the world's farmland to sequester carbon while improving the health of our soil and the nurtition density of our food.
The catch is that we need the animals to restore soil health and presumably we need the business model of selling the meat to make this practice sustainable.
Further Reading:
Dirt to Soil - Gabe Brown
Alan Savory's Holistic Management Practices - https://youtu.be/q7pI7IYaJLI